Why is the eye protection mode of mobile phone usually yellow tone?

The reason why the eye protection mode of mobile phones is usually yellow is that yellow can filter blue light better.

The so-called "eye protection mode", at this stage, most manufacturers adopt the method of removing blue light, that is, software removes blue light. Through a specific software algorithm, the blue light emitted by the screen can be reduced. Since most of the current LED display screens use RGB three-color pixels, when the blue light is reduced, the red and green spectra will appear close to yellow after fusion, which is also the reason why the "eye protection mode" screen appears yellow.

Blue light is the light with the shortest wavelength and the largest energy among all rays. The human eye can block 99% of ultraviolet rays, but almost all visible blue light can easily pass through the retina. Everything in the system settings is turned on (software filters blue light), that is, the yellow tone is increased by software algorithm to reduce blue light output, and the upper limit is very low, which can only reduce blue light by about 30%.

Introduction to common modes of mobile phones:

1, low power mode, that is, power saving mode. When the mobile phone turns on the low power consumption mode, the system will reduce the frequency of using various resources, reduce the screen brightness and shorten the screen display time. At the same time, in this mode, the system will also turn off functions such as WiFi and Bluetooth to achieve the purpose of extending battery life.

2. Flight mode. In this mode, the mobile phone cuts off all contact with the outside world through the mobile phone card, including calls, short messages and data networks. However, WiFi is not affected.

3. Power-saving mode, that is, if the digital multifunction machine does not operate for a certain period of time, it will automatically shut down, thus maintaining the durability of the battery for a longer time.

4. Hibernation mode means that the computer will save images of the desktop and all open files and documents when not in use, and then it can directly disconnect the power.

5. Super power saving mode. In this mode, the mobile phone only retains the most basic calling and SMS functions, and all other functions are invalid.